mirror of
https://github.com/EGroupware/egroupware.git
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333 lines
13 KiB
PHP
333 lines
13 KiB
PHP
<?php
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/**************************************************************************\
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* phpGroupWare API - Access Control List *
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* This file written by Dan Kuykendall <seek3r@phpgroupware.org> *
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* Security scheme based on ACL design *
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* Copyright (C) 2000, 2001 Dan Kuykendall *
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* -------------------------------------------------------------------------*
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* This library is part of the phpGroupWare API *
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* http://www.phpgroupware.org/api *
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* ------------------------------------------------------------------------ *
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* This library is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as published by *
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* the Free Software Foundation; either version 2.1 of the License, *
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* or any later version. *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
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* See the GNU Lesser General Public License for more details. *
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* You should have received a copy of the GNU Lesser General Public License *
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* along with this library; if not, write to the Free Software Foundation, *
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
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\**************************************************************************/
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/* $Id$ */
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class acl
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{
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var $account_id;
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var $account_type;
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var $data = Array();
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var $db;
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/**************************************************************************\
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* Standard constructor for setting $this->account_id *
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\**************************************************************************/
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function acl($account_id = "")
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{
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global $phpgw, $phpgw_info;
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$this->db = $phpgw->db;
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if (! $account_id) {
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$this->account_id = $phpgw_info["user"]["account_id"];
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} elseif (is_long($account_id)) {
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$this->account_id = $account_id;
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} elseif(is_string($account_id)) {
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$this->account_id = $phpgw->accounts->name2id($account_id);
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}
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}
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/**************************************************************************\
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* These are the standard $this->account_id specific functions *
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\**************************************************************************/
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function read_repository()
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{
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global $phpgw, $phpgw_info;
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$sql = "select * from phpgw_acl where (acl_account in (".$this->account_id.", 0";
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$equalto = $phpgw->accounts->security_equals($this->account_id);
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if (is_array($equalto) && count($equalto) > 0){
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for ($idx = 0; $idx < count($equalto); ++$idx){
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$sql .= ",".$equalto[$idx][0];
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}
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}
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$sql .= "))";
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$this->db->query($sql ,__LINE__,__FILE__);
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$count = $this->db->num_rows();
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$this->data = Array();
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for ($idx = 0; $idx < $count; ++$idx){
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//reset ($this->data);
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//while(list($idx,$value) = each($this->data)){
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$this->db->next_record();
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$this->data[] = array("appname" => $this->db->f("acl_appname"),
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"location" => $this->db->f("acl_location"),
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"account" => $this->db->f("acl_account"),
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"rights" => $this->db->f("acl_rights")
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);
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}
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reset ($this->data);
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return $this->data;
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}
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function read()
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{
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if (count($this->data) == 0){ $this->read_repository(); }
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reset ($this->data);
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return $this->data;
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}
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function add($appname = False, $location, $rights)
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{
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if ($appname == False){
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$appname = $phpgw_info["flags"]["currentapp"];
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}
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$this->data[] = array("appname" => $appname, "location" => $location, "account" => $this->account_id, "rights" => $rights);
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reset($this->data);
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return $this->data;
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}
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function delete($appname = False, $location)
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{
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if ($appname == False){
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$appname = $phpgw_info["flags"]["currentapp"];
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}
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$count = count($this->data);
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reset ($this->data);
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while(list($idx,$value) = each($this->data)){
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if ($this->data[$idx]["appname"] == $appname && $this->data[$idx]["location"] == $location && $this->data[$idx]["account"] == $this->account_id){
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$this->data[$idx] = Array();
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}
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}
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reset($this->data);
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return $this->data;
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}
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function save_repository(){
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global $phpgw, $phpgw_info;
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reset($this->data);
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$sql = "delete from phpgw_acl where acl_account = ".$this->account_id;
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$this->db->query($sql ,__LINE__,__FILE__);
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$count = count($this->data);
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reset ($this->data);
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while(list($idx,$value) = each($this->data)){
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if ($this->data[$idx]["account"] == $this->account_id){
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$sql = "insert into phpgw_acl (acl_appname, acl_location, acl_account, acl_rights)";
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$sql .= " values('".$this->data[$idx]["appname"]."', '".$this->data[$idx]["location"]."', ".$this->account_id.", ".$this->data[$idx]["rights"].")";
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$this->db->query($sql ,__LINE__,__FILE__);
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}
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}
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reset($this->data);
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return $this->data;
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}
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/**************************************************************************\
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* These are the non-standard $this->account_id specific functions *
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\**************************************************************************/
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function get_rights($location,$appname = False){
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global $phpgw, $phpgw_info;
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if (count($this->data) == 0){ $this->read_repository(); }
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reset ($this->data);
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if ($appname == False){
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$appname = $phpgw_info["flags"]["currentapp"];
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}
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$count = count($this->data);
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if ($count == 0 && $phpgw_info["server"]["acl_default"] != "deny"){ return True; }
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$rights = 0;
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// for ($idx = 0; $idx < $count; ++$idx){
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reset ($this->data);
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while(list($idx,$value) = each($this->data)){
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if ($this->data[$idx]["appname"] == $appname) {
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if ($this->data[$idx]["location"] == $location || $this->data[$idx]["location"] == 'everywhere'){
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if ($this->data[$idx]["rights"] == 0){ return False; }
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$rights |= $this->data[$idx]["rights"];
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}
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}
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}
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return $rights;
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}
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function check($location, $required, $appname = False){
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global $phpgw, $phpgw_info;
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$rights = $this->get_rights($location,$appname);
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return !!($rights & $required);
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}
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function get_specific_rights($location, $appname = False){
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global $phpgw, $phpgw_info;
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if ($appname == False){
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$appname = $phpgw_info["flags"]["currentapp"];
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}
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$count = count($this->data);
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if ($count == 0 && $phpgw_info["server"]["acl_default"] != "deny"){ return True; }
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$rights = 0;
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reset ($this->data);
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while(list($idx,$value) = each($this->data)){
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if ($this->data[$idx]["appname"] == $appname &&
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($this->data[$idx]["location"] == $location || $this->data[$idx]["location"] == 'everywhere') &&
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$this->data[$idx]["account"] == $this->account_id) {
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if ($this->data[$idx]["rights"] == 0){ return False; }
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$rights |= $this->data[$idx]["rights"];
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}
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}
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return $rights;
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}
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function check_specific($location, $required, $appname = False){
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$rights = $this->get_specific_rights($location,$appname);
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return !!($rights & $required);
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}
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function get_location_list($app, $required){
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global $phpgw, $phpgw_info;
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// User piece
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$sql = "select acl_location, acl_rights from phpgw_acl where acl_appname = '$app' ";
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$sql .= " and (acl_account in ('".$this->account_id."', 0"; // group 0 covers all users
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$equalto = $phpgw->accounts->security_equals($this->account_id);
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if (is_array($equalto) && count($equalto) > 0){
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for ($idx = 0; $idx < count($equalto); ++$idx){
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$sql .= ",".$equalto[$idx][0];
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}
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}
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$sql .= ")))";
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$this->db->query($sql ,__LINE__,__FILE__);
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$rights = 0;
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if ($this->db->num_rows() == 0 ){ return False; }
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while ($this->db->next_record()) {
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if ($this->db->f("acl_rights") == 0){ return False; }
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$rights |= $this->db->f("acl_rights");
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if (!!($rights & $required) == True){
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$locations[] = $this->db->f("acl_location");
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}else{
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return False;
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}
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}
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return $locations;
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}
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/*
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This is kinda how the function SHOULD work, so that it doesnt need to do its own sql query.
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It should use the values in the $this->data
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function get_location_list($app, $required){
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global $phpgw, $phpgw_info;
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if ($appname == False){
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$appname = $phpgw_info["flags"]["currentapp"];
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}
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$count = count($this->data);
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if ($count == 0 && $phpgw_info["server"]["acl_default"] != "deny"){ return True; }
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$rights = 0;
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reset ($this->data);
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while(list($idx,$value) = each($this->data)){
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if ($this->data[$idx]["appname"] == $appname && $this->data[$idx]["rights"] != 0){
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$location_rights[$this->data[$idx]["location"]] |= $this->data[$idx]["rights"];
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}
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}
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reset($location_rights);
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for ($idx = 0; $idx < count($location_rights); ++$idx){
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if (!!($location_rights[$idx] & $required) == True){
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$location_rights[] = $this->data[$idx]["location"];
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}
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}
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return $locations;
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}
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*/
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/**************************************************************************\
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* These are the generic functions. Not specific to $this->account_id *
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\**************************************************************************/
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function add_repository($app, $location, $account_id, $rights){
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$this->delete_repository($app, $location, $account_id);
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$sql = "insert into phpgw_acl (acl_appname, acl_location, acl_account, acl_rights)";
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$sql .= " values('".$app."', '".$location."', ".$account_id.", ".$rights.")";
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$this->db->query($sql ,__LINE__,__FILE__);
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return True;
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}
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function delete_repository($app, $location, $account_id){
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$sql = "delete from phpgw_acl where acl_appname like '".$app."'"
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. " and acl_location like '".$location."' and "
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. " acl_account = ".$account_id;
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$this->db->query($sql ,__LINE__,__FILE__);
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return $this->db->num_rows();
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}
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function get_app_list_for_id($location, $required, $account_id = False){
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global $phpgw, $phpgw_info;
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if ($account_id == False){ $account_id = $this->account_id; }
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$sql = "select acl_appname, acl_rights from phpgw_acl where acl_location = '$location' and ";
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$sql .= "acl_account = ".$account_id;
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$this->db->query($sql ,__LINE__,__FILE__);
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$rights = 0;
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if ($this->db->num_rows() == 0 ){ return False; }
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while ($this->db->next_record()) {
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if ($this->db->f("acl_rights") == 0){ return False; }
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$rights |= $this->db->f("acl_rights");
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if (!!($rights & $required) == True){
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$apps[] = $this->db->f("acl_appname");
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}
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}
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return $apps;
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}
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function get_location_list_for_id($app, $required, $account_id = False){
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global $phpgw, $phpgw_info;
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if ($account_id == False){ $account_id = $phpgw_info["user"]["account_id"]; }
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$sql = "select acl_location, acl_rights from phpgw_acl where acl_appname = '$app' and ";
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$sql .= "acl_account = '".$account_id."'";
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$this->db->query($sql ,__LINE__,__FILE__);
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$rights = 0;
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if ($this->db->num_rows() == 0 ){ return False; }
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while ($this->db->next_record()) {
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if ($this->db->f("acl_rights")) {
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$rights |= $this->db->f("acl_rights");
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if (!!($rights & $required) == True){
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$locations[] = $this->db->f("acl_location");
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}
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}
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}
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return $locations;
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}
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function get_ids_for_location($location, $required, $app = False){
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global $phpgw, $phpgw_info;
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if ($app == False){
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$app = $phpgw_info["flags"]["currentapp"];
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}
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$sql = "select acl_account, acl_rights from phpgw_acl where acl_appname = '$app' and ";
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$sql .= "acl_location = '".$location."'";
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$this->db->query($sql ,__LINE__,__FILE__);
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$rights = 0;
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if ($this->db->num_rows() == 0 ){ return False; }
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while ($this->db->next_record()) {
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$rights |= $this->db->f("acl_rights");
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if (!!($rights & $required) == True){
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$accounts[] = $this->db->f("acl_account");
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}
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}
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return $accounts;
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}
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} //end of acl class
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?>
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